Nonvolatile memory device, nonvolatile memory system including the same, and method of operating the same

    公开(公告)号:US09941014B2

    公开(公告)日:2018-04-10

    申请号:US14477347

    申请日:2014-09-04

    Inventor: ChulHo Lee

    CPC classification number: G11C16/32 G11C11/5628 G11C16/10 G11C2207/2245

    Abstract: A nonvolatile memory device includes a memory cell array having a normal area and a temporary area. A page buffer stores data to be written to the normal area in a normal program operation and store a temporary data to be written to the temporary area in a temporary program operation. A control logic performs the normal program operation including a plurality of program loops. The control logic receives a suspend command before the normal program operation is completed and determines, in response to the suspend command, whether to complete the normal program operation or to suspend the normal operation and perform the temporary program operation based on a reference value representing a time for performing at least one program loop of the plurality of program loops.

    Operating method of a nonvolatile memory device
    2.
    发明授权
    Operating method of a nonvolatile memory device 有权
    非易失性存储器件的操作方法

    公开(公告)号:US08988928B2

    公开(公告)日:2015-03-24

    申请号:US13947466

    申请日:2013-07-22

    Inventor: ChulHo Lee

    Abstract: An operating method of a multi-bit-per-cell nonvolatile memory device, e.g., first and second variable resistance memory cells connected to one of word lines. The operating method may include receiving first to fourth data sequentially, providing a first program current to the first variable resistance memory cell to program the first and second data to the first variable resistance memory cell, and providing a second program current to the second variable resistance memory cell to program the third and fourth data to the second variable resistance memory cell after verifying whether an actual resistance of the programmed first variable resistance memory cell is within an intended resistance distribution.

    Abstract translation: 多比特单元非易失性存储器件的操作方法,例如连接到字线之一的第一和第二可变电阻存储器单元。 操作方法可以包括顺序地接收第一到第四数据,向第一可变电阻存储单元提供第一编程电流,以将第一和第二数据编程到第一可变电阻存储单元,并向第二可变电阻提供第二编程电流 存储单元,用于在验证所编程的第一可变电阻存储单元的实际电阻是否在预期电阻分布内之前将第三和第四数据编程到第二可变电阻存储单元。

Patent Agency Ranking